mathsurgery - Equations formulae, identities and expressions 3 year 9

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• Use formulae from mathematics and other subjects; substitute integers into simple formulae, including examples that lead to an equation to solve; substitute positive integers into expressions involving small powers, e.g. 3x2 + 4 or 2x3; derive simple formulae
• Simplify or transform linear expressions by collecting like terms; multiply a single term over a bracket• Construct & solve linear equations with integer coefficients (unknown on either or both sides) using appropriate methods (e.g. inverse operations, transforming both sides in the same way)

Most

• Use formulae from mathematics and other subjects; substitute numbers into expressions and formulae; derive a formula and, in simple cases, change its subject
• Simplify or transform algebraic expressions by taking out single-term common factors
• Construct and solve linear equations with integer coefficients (with and without brackets, negative signs anywhere in the equation, positive or negative solution)

Some
• Explore ways of constructing models of real-life situations by drawing graphs and constructing algebraic equations and inequalities
• Derive and use more complex formulae; change the subject of a formula, including cases where a power of the subject appears in the question or solution, e.g. find r given that A = pr2

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Equations formulae, identities and expressions 3 year 9

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